In linguistics, gapping is a type of ellipsis that occurs in the non-initial conjuncts of coordinate structures. Gapping usually elides minimally a finite verb and further any non-finite verbs that are present. This material is "gapped" from the non-initial conjuncts of a coordinate structure.

What does gaping mean slang?

: to look at someone or something with your mouth open in surprise or wonder.

What does gapping mean driving?

A gap is defined as the time interval between the arrivals of two successive vehicles on the major street traffic stream. ... It should be noted that the drivers of the vehicles on the major street always have the priority over minor street drivers and therefore not impeded by the minor street flow.